Explorarion of novel device technology based on topological electronic states

2018 Fiscal Year Final Research Report

• Project/Area Number: 16H03847
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied materials
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Sasagawa Takao 東京工業大学, 科学技術創成研究院, 准教授 (30332597)
• Research Collaborator: YANO Rikizo ; OKAWA Kenjiro ; MISAWA Tetsuro ; MURASE Masayuki ; HANAGURI Tetsuo ; ISHIZAKA Kyoko
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: トポロジカル絶縁体 / トポロジカル半金属 / トポロジカル超伝導体 / 新物質探索 / 新物性探索 / 単結晶 / 第一原理計算 / 量子計測

Outline of Final Research Achievements

Because of their novel quantum states, topological electronic materials are promising components for next generation electronics such as spin devices and quantum computers. We developed both new compounds and novel electronic functionality within a new class of materials called "topological insulators, topological semimetals, and topological superconductors". With regard to materials, phenomena, and functions, several unexpected discoveries were made, which were puplised as 45 articles in high-impact-factor journals, including 5 articles in Nature and sister journals.

Free Research Field

物質科学

Academic Significance and Societal Importance of the Research Achievements

トポロジカル電子物質について新物質、新現象、新機能を開拓できた。これは、当該分野の基礎学理の確立といった学術的観点で重要である。加えて、トポロジカル電子物質は、無散逸電気伝導やスピントロニクス、量子コンピュータなどの広範なデバイス技術にも応用可能性のある革新的デバイス素材と位置付けられていることから、将来的には省エネ・高速・高機能等で大きな波及効果も期待される。